JP2001010765A - Sheet folding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet folding machine constructed to permit easy setting of an space between folding rollers. SOLUTION: This sheet folding machine has a display part, in which a folding roller consisting of (a) through (g) touch keys 2, a movable roller for which a vertical or horizontal arrow is marked and 8 (+) marked fixed roller, a buckle 8 for which 1 through 6 numbers are marked, a folding knife 9 and the like are displayed on a display screen 1. Touching a folding form (a) gives various folding form displays on the display screen 1. A preset folding form out of these is selected, and then the maximum and minimum values for sheets passing between folding rollers are computed by a control part and the values are displayed on a sheet number display column 3 on the basis of the use of the next buckle or not. A space between the folding rollers can be adjusted in accordance with the number of the sheets displayed thereon.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper folding machine having a structure in which the interval between folding rollers can be easily set.

[0002]

2. Description of the Related Art There is a case in which a sheet on which characters, figures, and the like are written is folded into a predetermined size, bound to a file, or put in an envelope. FIGS. 14 to 16 are schematic perspective views showing examples of such folding of the sheet. In the example of FIG.
Is folded inward at the position of X in the center and Pa, Pb
This is an example of forming.

The example of FIG. 15 is an example in which the sheet P is folded once inward at the position X, and the surface of Pa is further folded outward at the position Y to form a three-fold (single-sleeve fold). FIG.
The example of No. 6 shows an example in which the sheet P folded in half as shown in FIG. 14 is further folded inward at the position of Z and folded in four. As described above, a sheet folding machine is used when various folding shapes such as folding in two at a predetermined position are continuously applied to a large number of sheets. In this paper folding machine, a folding shape is given to a paper using a folding roller.

FIG. 17 is an explanatory diagram showing an example of the configuration of such a paper folding machine. In FIG. 17, S is the transport unit, T
Denotes a first sheet folding unit, and R denotes a second sheet folding unit. The sheet P is conveyed by the conveying unit S to the first sheet folding unit T in the direction of arrow a from the sheet tray which is discharged from the printing press or in which printed sheets are accumulated in advance.

[0005] Near the end of the transport section S, guide plates S1 and S
2 are provided. Each guide plate S1, S2 is a sheet P
Are moved in the directions of arrows G1 and G2, respectively, in accordance with the size of the sheet P in the width direction, and the position of the sheet P is adjusted with respect to the first sheet folding section T and the second sheet folding section R.

The first sheet folding section T is provided with a predetermined number of folding rollers T1 and first and second buckles T2 and T3 for drawing in the leading edge of the sheet. First from direction b
The sheet P carried into the sheet folding section T of the first and second sheets is the first and second sheets.
The buckles T2 and T3 and the folding roller T1 work in cooperation to give various set folding shapes. In this example, a sheet P to which a folded shape is provided
Is carried out from the first sheet folding section T in the direction of arrow c.

A folding knife R is provided in the second sheet folding section R.
1. A pair of folding rollers R2 are provided. In the first sheet folding section T, a sheet P given a predetermined shape as described above, for example, a folding form of two is formed by a pair of folding rollers R.
2 is carried over.

At this time, the folding knife R1 moves from the direction of arrow d to operate to push the sheet P between the pair of folding rollers R2, and the pair of folding rollers R2 is viewed from arrow. R
The sheet P is fed in the direction of arrow e while being rotated in the directions R and Rb to give the paper P a folded shape. In this way, the paper P
As shown in FIG. 6, a four-fold fold shape formed in a direction in which the folding positions are orthogonal to each other is provided.

The second sheet folding unit R is necessary when folding the paper so that the folding positions are formed in the direction orthogonal to each other as in the example of the four-fold folding shown in FIG. 1
As in the example of single-sleeve folding in No. 5, when giving a folded shape in which only one sheet is folded when the folding position is reversed, it can be dealt with only by the first sheet folded portion T.

FIG. 18 is a side view simulating the operation of the first sheet folding section T. The folding roller T1 is a fixed roller.
And a movable roller Ta, Tc, and Td. Each of the movable rollers Ta, Tc, and Td moves up and down or moves left and right in the direction of the arrow shown in the rollers.

The buckles T2 and T3 are provided with stoppers Qa and Qb, respectively. The stoppers Qa and Qb are arranged in the directions of the arrows Sa and La or in the directions of the arrows Sb and Lb according to the sheet size and the folding shape. Go to

The folding rollers Ta to Td are in contact with each other in the initial state, but when forming a folding shape, the folding rollers are adjusted in accordance with the number of sheets passing between the folding rollers. -Adjusting the distance between the lines. Such a folding row
Adjustment of the gap between the rollers is performed by the sheet holding portion U. The paper clamp U is provided with three adjusting portions provided with identification marks A, B, and C.

For example, when a single-sleeve fold is given to a sheet as shown in FIG. 15, folding rollers Ta and Tb are used.
There is only one sheet passing between the rollers, and the folding rollers Tb and Tc
The number of sheets passing between the sheets is two because the sheet is folded into two. Further, the number of sheets passing between the folding rollers Tc and Td becomes three because one of the two folded sheets is further folded back and overlapped.

As described above, when the material of the paper to be folded is selected and the shape of the folded paper is selected, the adjusting portions A, B, and C of the paper clip U are made of the same material. The spacing between each folding roller is adjusted using a small piece of paper. In the case of the above example, the adjusting unit A increases the interval between the folding rollers Ta and Tb for one sheet. In the adjusting section B, the folding roller T for two sheets of paper is used.
Increase the interval between b and Tc. In the adjusting section C, an interval is provided between the folding rollers Tc and Td for three sheets.

V is a carry-out section, and a pair of feed rollers Va, V
b is provided, and the sheet folded in the first sheet folding section T is carried out to the second sheet folding section R. If it is not necessary to give the folded shape by the second sheet folding unit R, the sheet given the folded shape by the first sheet folding unit T is carried out as it is.

In recent years, computer controlled paper folding machines have been developed, and attempts have been made to automatically set the spacing between folding rollers. In such a computer-controlled paper folding machine, each folding roll is adapted to various folding forms.
The interval between rollers is stored in a storage device in advance, and when the folding shape is determined, the interval between folding rollers stored in the storage device is read out and set.

In a computer controlled sheet folding machine, a user manually inputs the interval between each folding roller in accordance with the thickness of the sheet and stores the distance in a storage device. In some cases, this is read to set the interval between the folding rollers.

[0018]

As described above, in the conventional paper folding machine, the buckle to be used is set when the size, material, and folded shape of the paper are selected. When the buckle to be used is set, the spacing between the folding rollers is adjusted as described above, but the adjusting portions A, B, and C of the sheet sandwiching portion U are adjusted.
The number of sheets to be sandwiched between and adjusting the spacing of the corresponding folding rollers is determined by the operator based on the material (paper thickness) and the folding shape of the sheet to be folded. It was determined based on. Such a determination requires a skilled worker to handle the paper folding machine, and has a problem that it takes time.

In a computer-controlled paper folding machine, a table is set in which the intervals between folding rollers are set in correspondence with various types of folding forms, and this table is stored in advance. Since the information is stored in the device, there is a problem that the capacity of the storage device is insufficient. Further, when the user inputs the interval between the folding rollers into the storage device and reads and sets the interval, there is a problem that the operation of folding the paper is complicated.

The present invention has been made in view of such a problem, and
It is an object of the present invention to provide a paper folding machine having a configuration in which the interval between lanes can be easily set.

[0021]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a paper folding machine comprising:
And a plurality of buckles into which the leading edge of the paper is drawn, and a paper folding unit for giving a predetermined folding shape to the paper by a combination of the folding roller and the buckle, and a control unit for inputting the folding shape. The control unit calculates the maximum value and the minimum value of the sheet passing through each folding roller in accordance with the input folding shape, and calculates the interval between the folding rollers based on the calculation result. Can be achieved by adjusting the value of.

According to a second aspect of the present invention, in the paper folding machine according to the first aspect, the paper folding section includes:
A folding knife and another sheet folding section having a pair of folding rollers are provided in series.

According to a third aspect of the present invention, in the paper folding machine according to the first or second aspect, the control unit is configured to control each of the percent areas of the paper in accordance with the input folding shape. And a display unit for calculating the number of overlapping images and displaying the calculation result in a pattern.

According to the first aspect of the present invention, there is provided a control unit for calculating the maximum value and the minimum value of the paper passing through each folding roller in accordance with the input folding shape, and based on the calculation result, The spacing between the folding rollers is adjusted. Therefore, it is possible to easily adjust the interval between the folding rollers. Further, since it is not necessary to previously store the table in which the intervals between the folding rollers are set in correspondence with various types of folding shapes in the storage device, the storage device can be effectively used.

According to a second aspect of the present invention, there is provided a sheet folding section for forming a predetermined folding shape on a sheet by combining a folding roller and a buckle, the folding section having a folding knife and a pair of folding rollers. Since the sheet folding portions are provided in series, it is possible to provide various folding shapes.

According to a third aspect of the present invention, there is provided a control unit for calculating the number of overlapping sheets for each percent area of the paper in accordance with the input folding pattern, and the calculation result is displayed in a pattern. Since the display unit is provided, the number of overlapping portions of each percent area of the paper, that is, the characteristics of the folded shape can be visually grasped.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a paper folding machine according to an embodiment of the present invention will be described. In the present invention, when the folding shape is determined, the number of overlapping sheets in each area of the sheet, that is, the maximum value and the minimum value of the number of overlapping sheets, are calculated corresponding to the folding shape, and the folding roller is calculated based on the overlapping number. The distance between the folding rollers is adjusted by indicating how many sheets the thickness corresponds to the thickness of the sheet.

FIG. 8 is an explanatory diagram of the basic principle of the present invention. In FIG. 8A, a sheet P composed of four sides ABDC
Is folded on the sides AB and CD.
In this case, the maximum length of the folded portion protruding from the side BD corresponds to a case where one side AC is folded in the arrow W direction about the side BD.

In the initial state, the sheet P has a size up to the side BD in the length direction with reference to the position of the side AC. Here, the size of the sheet P is set to 0%,
The position of the side BD is represented by 100%, and the protruding length when the sheet P is folded is represented by 101% to 200%.

At this time, the number of sheets in each area of the sheet P is [1] in an area of 0% to 100%.
% To 200%

[0]. That is, FIG.
As shown in (a), when the size of the sheet P is displayed in%, an algorithm for displaying the number of sheets in each% area is as follows.
In the present invention, it is defined as “paper arrangement [N]”. Here, N is a number of 0, 1, 2, 3,.

FIG. 8B shows an example in which the paper P is folded back in a 75% area. In this case, the algorithm of the paper arrangement is in the range of 0% to 75%.

[0], 76%
It is [2] in the region of ２100%. Also, from 101% to
In the area of 175%, it is [1], and 176% to 200%
In the area of

[0].

FIGS. 9 and 10 are explanatory diagrams for explaining an algorithm for arranging sheets when one-sleeve folding is performed. Also,
11 to 13 are side views for explaining the operation of the folding roller and the buckle when performing one-sleeve folding. Next, FIG.
An operation example of one-sleeve folding will be described with reference to FIGS. 11 to 13 are given reference numerals in correspondence with the example of FIG.

The positions of the first and second buckle stoppers Qa and Qb are set, and the distance between the folding rollers is adjusted.
The sheet P is fed and passed between the folding rollers Ta and Tb.
The sheet P is pulled into the first buckle T2, and the leading end is stopped at the position of the first buckle stopper Qa. Even if the leading end is pressed by the first buckle stopper Qa, the sheet P is folded by the folding roller T.
a and Tb, so that the folding rollers Tb,
Deflection gradually occurs between Tc.

The bent paper P is then drawn into the second buckle T3 while being folded between the folding rollers Tb and Tc as shown in FIG. It stops at the position of the stopper Qb. The tip is second
Even if the sheet P is pressed by the buckle stopper Qb, the sheet P is further fed by the folding rollers Ta and Tb and the folding rollers Tb and Tc, so that the sheet P is gradually bent between the folding rollers Tc and Td. come.

The bent sheet P is then carried out from the feed rollers Va and Vb to the next step while being folded between the folding rollers Tc and Td as shown in FIG. You. In this way, the paper P is given a single-sleeve fold.

Next, the algorithm for arranging sheets when performing single-sleeve folding as shown in FIGS. 11 to 13 will be described with reference to FIGS.
0 will be described. In FIG. 9A, the sheet P is folded at the position of GH in the area 25%, and the position of one side AC is overlapped with the EF in the area of 50%.

The algorithm of the paper arrangement at this time is as follows.
In the 25% area

[0], [2] in the range of 26 to 50%,
In the region of 51 to 100% [1] In the region of 101 to 200%

[0] is obtained. In this case, the paper layout

Since [0] is set, the head position of the paper is aligned with a reference 0% position in order to simplify the subsequent arithmetic processing.

That is, as shown in FIG.
Is advanced by 25%. When such a process of advancing the leading position of the sheet P is performed, the algorithm of the sheet arrangement is [2] in the area of 0 to 25%, [1] in the area of 26 to 75%, and [1] in the area of 76 to 200%.

[0] is obtained. At this time, since the maximum value of the sheet passing between the folding rollers Tb and Tc in FIG. 12 is [2] and the minimum value is [1], this value is stored in a predetermined area of the storage unit. .

Next, as shown in FIG.
EF corresponding to a 50% area in the paper arrangement of FIG.
And fold the GACH face back. In this case, the algorithm of the paper arrangement is in the range of 0 to 25%.

[0], [3] in an area of 26 to 50%, [1] in an area of 51 to 75%, and [1] in an area of 76 to 200%

[0] is obtained.

Also in this case, as shown in FIG.
The EF position is advanced by 25% and the leading position of the sheet P is advanced. Therefore, the algorithm of the paper arrangement is 0
[3] in an area of ２５25%, [1] in an area of 26 to 50%, and [1] in an area of 51 to 200%

[0] is obtained. At this time, since the maximum value of the sheet passing between the folding rollers Tc and Td in FIG. 13 is [3] and the minimum value is [1], this value is stored in a predetermined area of the storage unit. .

In the examples shown in FIGS. 11 to 13, for simplicity, buckles are arranged at two positions T2 and T3, and four folding rollers Ta to Td are provided. Many buckles and folding rollers may be installed.
When one-sleeve folding is performed as shown in FIGS. 8 to 10, the buckle and the folding roller installed after the next stage are not used, and the paper passing between the folding rollers is not used. Only the maximum thickness [3] and the minimum thickness [1] are stored in a predetermined area of the storage unit.

When the buckle installed in the next stage is used, the interval between the folding rollers on the exit side of a certain buckle is set to the minimum value of the sheet thickness obtained by the above calculation. When the installed buckle is not used, the maximum value of the sheet thickness obtained by the above calculation is set.

For example, in the case of FIG. 12, since the buckle T3 installed at the next stage of the buckle T2 is used for the sheet folding process in this case, the folding roller Tb on the exit side of the buckle T2, The interval between Tc is set to the minimum value “1”. This is because when the leading end of the folded sheet P is fed to the position of the stopper Qb of the buckle T3, one sheet passes between the folding rollers Tb and Tc behind the sheet P. In some cases, even in such a case, the sheet P is reliably fed to the position of the stopper Qb of the buckle T3.

The number of overlapping sheets at the leading end of the sheet P is "2".
However, even if the interval between the folding rollers Tb and Tc is set to the minimum value of "1", the folding roller Tc is not in contact with the roller Tb when the sheet passes by the spring action. Move in the direction to increase the interval.

In the example shown in FIG. 12, when the sheet P is discharged in the state of being folded in two, the buckle T3 is not used, and the folded sheet is folded between the folding rollers Tb and Tc. After being given, it is subsequently drawn between the folding rollers Tc and Td and fed. Therefore, the interval between the folding rollers Tb and Tc on the exit side of the buckle T2 is set to the maximum value "2".

As described above, in the present invention, the maximum value [Na] and the minimum value [Nb] of the sheet passing through each folding roller.
Is calculated and stored every time the folding process is performed. For this reason, the capacity of the storage unit is greatly reduced as compared with a conventional configuration in which the interval between the respective folding rollers is stored in advance in the form of a table in the storage unit in correspondence with each folding shape. And the storage unit can be effectively used.

Further, since the thickness of the sheet is developed in the% area of the sheet corresponding to the folded shape during the arithmetic processing as described above, the processing area can be fixed regardless of the sheet size. Can be done quickly. In addition, since a calculation area is secured by setting a 101 to 200% area for folding in the sheet arrangement, and processing for aligning the top of the sheet is performed for each folding processing, an exception to any folding processing is provided. I can respond without. Further, the maximum value and the minimum value of the number of sheets passing through each folding roller are calculated, and the interval between the folding rollers is adjusted to the maximum value and the minimum value according to the use of the buckle at the next stage. Is determined, so that the same processing as the manual setting can be performed.

FIG. 4 is a block diagram showing a control device of the sheet folding machine according to the present invention. Next, this block diagram will be described. The control unit includes an input unit A1 including various buttons, a control unit B using a central processing unit (CPU), and the like.
1, display lamp, electron tube, CRT, display unit C1 using liquid crystal, etc., guide plate driving motor control circuit D1, star
And a stop button E1, a storage unit F1, and a motor control circuit G1 for driving the stopper.

The input section A1 has a paper size button a for setting the size of the paper to be folded, a folded button b for setting the folded shape such as two-fold, three-fold, etc., and a paper to be folded. The number setting button c for setting the number of sheets, the stopper selection button d for setting which one of the plurality of buckle stoppers is to be selected, and the buckle stopper for the set buckle, such as the buckle stopper Qa shown in FIG. There are provided an S and L direction button e for setting which of the directions of arrow Sa and La to move, and a paper material setting button f for measuring and setting the thickness of the paper depending on the paper material with a caliper or the like. .

Here, the stopper selection buttons d, S,
The setting of the L-direction button e will be described. For example, FIG.
In the case of giving a two-folded folding shape as shown in FIG. 4, when the paper folding machine is operated by setting a test folding (not shown), the position of the folding shape is shifted from the center. Assume that it is output. In such a case, the stopper selection button d selects the buckle stopper Qa in the example of FIG.

Next, when the sheet is folded in half, FIG.
4, the S and L direction buttons e are set by checking which side of Pa or Pb is longer. Every time the button is pressed with this setting, the stepping motor is driven by a control signal from the stopper driving motor control circuit G1, and for example, S, 0.2 mm unit.
Buckle stopper Q in the direction set by L direction button e
a moves.

As shown in FIG. 15, when the folded shape is deviated from the Y position when the sheet is folded in one sleeve, the stopper selection button d selects the buckle stopper Qb. Also in this case, the S and L direction buttons e are set in the direction in which the shifted position is corrected. As described in the example of FIG. 14, the stepping motor is driven by the control signal from the stopper driving motor control circuit G1 to move the buckle stopper Qb.

When the number of sheets to be folded is set by the numerical value set button c, the numerical value is displayed in an analog manner on the electronic tube of the display section C1. For example, four electron tubes are installed on the operation panel so that a four-digit numerical value can be displayed. A3, A4, B4, B5
The display lamps are provided in correspondence with the paper sizes such as, for example, and the lighting position of the display lamp moves each time the paper size button a is pressed. The operation panel is provided with display lamps corresponding to various folding shapes such as two-fold and three-fold, and the lighting position of the display lamp moves each time the folding button b is pressed.

When the paper size of the paper to be folded is determined and the paper size button a is pressed, the control section B1 sends a signal to the guide plate drive motor control circuit D1 and the guide plate drive motor. The control circuit D1 forms a predetermined control signal,
A control signal is applied to the guide plate driving motor. Therefore, the guide plates S1 and S2 described with reference to FIG.
It moves a predetermined distance in the G2 direction.

The contents set by the paper size button a, folding button b, stopper selection button d, S, L direction button e, and paper material button f are registered in a predetermined area of the storage unit F1 by pressing the memory button. You. The registered contents can be called from the storage unit F1 by pressing a call button.

FIG. 1 shows a CRT of the display unit C1 shown in FIG.
FIG. 4 is an explanatory diagram illustrating an example of a display screen configured by a liquid crystal device. In FIG. 1, the display screen 1 is provided with a touch key-2, a sheet number display field 3, an up key-4, and a down key-5. In addition, a movable roller 6, a fixed roller 7, a buckle 8, and a folding knife 9 are displayed.

When pressing the folded key (a) of the touch key-2,
The display screen is switched to a display screen in which various folded shapes are displayed as shown in FIG. Pressing the roller interval key (b) displays the screen shown in FIG. The setup key (c) sets up folding presets, folding rollers, buckle arrangement, and the like.
Operate memory key (d) and set up key (c)
Is stored in the storage unit. Reset 1
(E) The key resets the contents set in the setup key (c) and the contents stored in the storage unit.

The movable roller 6 moves up and down in the direction of the arrow or moves in the left and right direction. The movable roller 6 has 1 to 10
Numbers are given. As the fixed rollers 7, three rollers indicated by (+) are displayed. Buckle 8
Numbers from 1 to 6 are assigned.

In the sheet number display column 3, as described above, the maximum value of the sheet passing through each folding roller, which is obtained by calculation according to the folding shape, according to whether the buckle of the next stage is used or not. Or the minimum value is displayed. Touch key-2 save key
(F) saves the numerical value of the number display column 3, and reset key-2 (g) resets the numerical value of the number display column 3.

FIG. 3 is a perspective view showing an example of adjusting the interval between the folding rollers. In FIG. 3, 13a to 13c are movable plates, and 14 is a fixed plate. Each movable plate 13a to 13c
Is connected to the shaft of the folding rollers via a mechanical power transmission mechanism. When the folding rollers are pushed down, the interval between the folding rollers is increased, and when pushed up, the roller spacing between the folding rollers is reduced. . By operating each movable plate, the interval between folding rollers is displayed in the display column 3
Is set to the predetermined interval displayed in. This interval setting
This is performed by sandwiching a predetermined number of sheets, the same as the sheet to be folded, between the movable plate and the fixed plate.

The fixing plate 14 is provided with a marker 14a for displaying the position of the folding roller interval corresponding to the position of the number display column 3 in FIG. In the example of FIG. 3, three sheets P3 are sandwiched at the position of the sign B, and two sheets P
2, the sheet P1 is sandwiched at the position of the marker C. Reference numerals 15a to 15c denote knobs for fine adjustment of the interval between the folding rollers, which are connected to the shafts of the folding rollers via a mechanical power transmission mechanism like the movable plates.

By sandwiching a predetermined number of sheets between the movable plate and the fixed plate, the interval between the respective folding rollers is adjusted, and then trial folding is performed. At this time, if the folding process cannot be performed as set at the interval determined by the first calculation, the numerical value of the display field 3 is changed by operating the up key-4 or the down key-5 in FIG. The movable plate is operated on the basis of the corrected numerical value to set the optimum number of sheets (fold roller interval) to be sandwiched between the movable plate and the fixed plate.

FIG. 2 is an explanatory diagram of an example of displaying various folded shapes 11 on the display screen. Touch key-2 other shape key
(H) is used when setting up a folded shape other than the illustrated one. The memory read key (i) is a key for reading a folded shape stored in the storage unit. When the user touches a predetermined folding shape, the screen of the folding shape is reversed. Such selection of the folding shape corresponds to the operation of the folding button b provided in the input unit A1 in FIG.

Reference numeral 12 denotes a paper size display field, in which the length and width of the paper to be folded are displayed. As the size of this paper, the size of a fixed size paper such as A4 or B4 is stored in the storage unit in advance, and is sequentially displayed by operation of scroll keys (j) and (k). Such selection of the paper size corresponds to the operation of the paper size button a provided in the input unit A1 in FIG. Select the folded shape, set the paper size, and operate the Enter key (1).

FIG. 5 shows the interval between the folding rollers of the sheet folding machine in which the folding rollers and the folding knives are arranged as shown in FIG.
4 is a flowchart showing a processing procedure for calculating a lag. Next, this flowchart will be described. In FIG. 5, the buckle numbers correspond to the buckle numbers in FIG.

(1) In step S1, the processing program for calculating the roller gap is started. Next, step S
In step 2, initial settings such as a folding shape setting and a paper size setting are performed. Subsequently, in step R1, gap 1 is set to 1 (paper 1
). Here, the gap number (numerical value) is
Numbers from 1 to 10 are given sequentially from the paper input side E in FIG. For example, number 2 and number 3 of movable rollers
Is gap 3.

(2) Next, in step S3, a subroutine process of the buckle 1 is performed. The buckle process will be described later with reference to the flowchart of FIG. Then step R
2, the gap 2 is set to MIN (1). Hereinafter, the processes of the buckles 2, 3, and 4 are performed in steps S4 to S6. In steps R3 and R4, gaps 3 and 4
Are set to MIN (2) and MIN (3), respectively. Further, at step R5, the gap 5 and the gap 6 are MAX.
Set to (4).

(3) Next, in step S7, a subroutine process of knife processing is executed. The knife processing will be described later with reference to the flowchart of FIG. Subsequently, in step R6, the gap 7 is set to MAX (knife),
The gap 8 is set to MIN (knife). Next, the processing of the buckles 5 and 6 is performed in steps S8 and S9, the gap 9 is set to MIN (5) in step R7, and the gap 10 is set to MAX (6) in step R8.

(4) Next, in the subroutine processing in step S10, the gap between the folding rollers is adjusted according to the use state of the buckle. This adjustment is performed in step R
In 9, the gap 2 is set to MAX (1) and the gap 3 is set to MAX (1).
Is set to MAX (2), the gap 4 is set to MAX (3), and the gap 9 is set to MAX (5).

That is, in steps R2 to R4, the interval between gaps 2 to 4 is set to MIN (1) as an initial value.
To MIN (3), but in the processing of step R9, the gaps 2 to 4 are set to MAX (1) to MAX (MAX) in accordance with the use of the buckle in the next stage as described above.
This is modified to (3).

FIG. 6 is a flowchart showing the procedure of the subroutine processing of the buckle processing. Next, this flowchart will be described.

In step S11, a subroutine of the buckle process is executed.
Start the chin processing program. Next, in the process of step S12, the sheet is folded back from the beginning of the sheet arrangement by the stopper length, and then the leading end of the sheet is aligned by shifting the amount of the turn in the process of step S13. Next, in the process of step S14, the maximum value and the minimum value of the number of sheets passed between the folding rollers are respectively stored in the MA of the storage unit.
It is stored in the X and MIN areas.

FIG. 7 is a flowchart showing the procedure of the subroutine processing of the knife processing. Next, this flowchart will be described.

(1) In step S21, a subroutine processing program for knife processing is started. Next, in step S22, it is determined whether a folding knife is used. If the result of this determination is YES, then in the processing of step S23, the paper arrangement (0-100%)
The thickness of the gap 6 is set in step S24, and the process proceeds to the subroutine process of the buckle process in step S24.

(2) If the decision result in the step S22 is NO, a sheet arrangement (0-1) is executed in a step S25.
00%) is set to 0, and the process proceeds to the subroutine process of the buckle process in step S26.

When the processing by the folding knife is performed as described above, the guide plates S1 and S2 provided near the end of the transport section S in FIG. Are moved in the directions of arrows G1 and G2, respectively, in accordance with the size in the width direction of, and the first sheet folding section and the second sheet folding section are aligned. Therefore, if predetermined settings are made in the input unit A1 of FIG.
The second sheet folding section can be operated without performing special settings.

The display screen 1 shown in FIGS. 1 and 2 shows an example of the present invention, and other items can be displayed. For example, as shown in FIGS. 8 to 10, when a folded shape is selected, the number of overlapping sheets in the percent area (0 to 200%) including the folded portion of the sheet is determined by the algorithm of the sheet arrangement [ 222 ... 111 ... 000 ...]
It is also possible to display with. By performing such a pattern display of the paper arrangement algorithm, it is possible to visually grasp the number of overlapping sheets in each% area of the paper, that is, the characteristics of the folded shape.

The adjustment of the interval between the respective folding rollers is shown in FIG.
Instead of the manual setting by sandwiching the sheet between the movable plate and the fixed plate as shown in (1), for example, a numerical value obtained by calculation is output to the servo motor, and the servo motor is driven. Then, the distance between the folding rollers can be automatically adjusted.

[0079]

As described above, the invention according to claim 1 is provided with a control unit for calculating the maximum value and the minimum value of the sheet passing through each folding roller in accordance with the input folding shape, The interval between the folding rollers is adjusted based on the calculation result. Therefore, it is possible to easily adjust the interval between the folding rollers. Further, since it is not necessary to previously store the table in which the intervals between the folding rollers are set in correspondence with various types of folding shapes in the storage device, the storage device can be effectively used.

According to a second aspect of the present invention, there is provided a sheet folding section for applying a predetermined folding shape to a sheet by a combination of a folding roller and a buckle, the folding section having a folding knife and a pair of folding rollers. Since the sheet folding portions are provided in series, it is possible to provide various folding shapes.

According to the third aspect of the present invention, a control unit is provided for calculating the number of overlapping sheets for each percent area of the paper in accordance with the input folding pattern, and the calculation result is displayed in a pattern. Since the display unit is provided, the number of overlapping portions of each percent area of the paper, that is, the characteristics of the folded shape can be visually grasped.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a display screen provided in a control device of a sheet folding machine according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a display screen provided in a control device of the sheet folding machine according to the embodiment of the present invention.

FIG. 3 is a perspective view showing a schematic configuration of a sheet holding portion.

FIG. 4 is a block diagram illustrating a control device of the sheet folding machine.

FIG. 5 is a flowchart showing a processing procedure for calculating a gap between folding rollers.

FIG. 6 is a flowchart showing a processing procedure of a buckle subroutine processing.

FIG. 7 is a flowchart showing a processing procedure of a subroutine processing of a folding knife.

FIG. 8 is an explanatory diagram showing a basic principle of the arithmetic processing of the present invention.

FIG. 9 is an explanatory diagram of an algorithm for arranging sheets when performing single-sleeve folding.

FIG. 10 is an explanatory diagram of an algorithm for arranging sheets when performing single-sleeve folding.

FIG. 11 is a side view showing the operation of a folding roller and a buckle when performing one-sleeve folding.

FIG. 12 is a side view showing the operation of a folding roller and a buckle when performing one-sleeve folding.

FIG. 13 is a side view showing the operation of a folding roller and a buckle when performing one-sleeve folding.

FIG. 14 is a perspective view showing a folded shape in two.

FIG. 15 is a perspective view showing a folded shape of one sleeve folding.

FIG. 16 is a perspective view showing a four-fold folding shape.

FIG. 17 is a perspective view showing the overall configuration of a paper folding machine.

FIG. 18 is a side view showing an example of the arrangement of a folding roller and a buckle.

[Explanation of symbols]

 1 display screen 2 touch key 3 paper number display field 4 up key 5 down key 6 movable key 7 fixed key 8 buckle 9 folding knife 11 folding 12 paper size display field A1 input section B1 control section C1 display section F1 storage Department

Claims (3)

[Claims] 1. A sheet folding section having a plurality of folding rollers and a plurality of buckles into which the leading end of a sheet is drawn, wherein a combination of the folding rollers and the buckle imparts a predetermined folding shape to the sheet. And a control unit for inputting the folded shape, wherein the control unit calculates the maximum value and the minimum value of the paper passing through each folding roller in accordance with the input folded shape, and calculates the maximum value and the minimum value of the paper. A sheet folding machine for adjusting an interval between folding rollers on the basis of the basis. 2. The sheet folding machine according to claim 1, wherein a folding knife and another sheet folding section having a pair of folding rollers are connected to the sheet folding section. 3. The control unit according to claim 1, further comprising a display unit for calculating the number of overlapping sheets for each percentage area of the paper in accordance with the input folding shape, and displaying the calculation result in a pattern. The sheet folding machine according to claim 1 or 2, wherein